“...University of Waikato Library,...”

“...British Library, Reference Division,...”

“...National Library of New Zealand,...”
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Archived copy available at the National Library of New Zealand

“...British Library Document Supply Centre,...”

“...National Library Service of Papua New Guinea,...”

“...Library Services, Royal New Zealand Foundation for the Blind,...”

“...Cold Regions Bibliography Project, Science and Technology Division, Library of Congress....”